Localized algorithms in wireless ad-hoc networks: location discovery and sensor exposure
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Locating Tiny Sensors in Time and Space: A Case Study
ICCD '02 Proceedings of the 2002 IEEE International Conference on Computer Design: VLSI in Computers and Processors (ICCD'02)
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
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Localization technology is the important supporting technology in wireless sensor networks. Positioning precision is largely determined by ranging precision in the localization technology based on the distance. Traditional RSSI ranging method exists some problems of path loss model complex, serious signal concussion caused by environmental changes, which leads to ranging error and so on. According to the above problems, the RSSI ranging method which uses anchor nodes to aided ranging based on signal random attenuation coefficient is proposed. In this ranging method, path loss model need not to be established, furthermore, attenuation coefficient is in using when needs, and the ranging error caused by serious signal concussion as a result of environmental change is reduced, thus the ranging method has good environment adaptability.